Rog Island (Bulgarian: остров Рог, romanized: ostrov Rog, IPA: [ˈɔstrof ˈrɔk]) is the partly ice-free island 557 m long in west–east direction and 208 m wide in the Dannebrog Islands group of Wilhelm Archipelago in the Antarctic Peninsula region. Its surface area is 5.06 ha. The feature is so named because of its shape supposedly resembling an animal horn ('rog' in Bulgarian), and in association with other descriptive names of islands in the area.